Improved window-button



` utiliteit gitane-' parte amm..

MoRToN JUDD 'AND ALBERT D. JUDD, CE NEW HAVEN, CONNECTICUT.

vLetters Patent No. 98,694, dated January 11, 1870.

IMPROVED DOW-BUTTON.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom 'it may concern:

y Be it known that we, MORTON J UDD and ALBERT D. J UDD, of New Haven, in the State of Connecticut, have invented and made a new and useful Improvement in Sash-Fastenings; and we do hereby declare the following tobe a correct description of the same.

The object of this'invention is to provide an adjustment that shall compensate shrinkage in the meeting rails of the sash, in orderthat the fastening may bring said rails together, for `excluding wind, and for preventing Jthe insertion of a knife or other instrument, for pening the fastening.

In the drawing- Figure 1 is a vertical section of the fastening transl ,l verscly of the meetingk rails;

Figure 2 is a plan of the said .'fastening, with the lever in ldotted lines; and

Figure 3 is an inverted yplan of the lever detached.

The lever a is formed with a cavity'at one end, in which the helical spring b is inserted, the same surrounding the rivet or screw f, uniting the level' a and plate c, and forming the axis or fulcrum on which the lever swings.

This spring b holds the lever a, by friction, at any point to which it may be turned. i

In order to limit the movement of the lever a, We provide a stop, 2, in the recessed'surface of the plate c, into which recessed sulface the annular ange 3, upon the lever a, sits; and said Harige 3 is vnotched or removed at one side, so as to allow the usual movement to the lever a of about ninety degrees.

l6, to draw the meeting rails together'.

It is usual to make these flanges, 4 and 6,upou one `plate,.and hence, when the meeting rails shrink, there is a space left open between them, and the plate cannot easily be moved, because the screw-holes in the meeting rails cannot be changed.

.We obviate this ditliculty by placing the flange 6 upon the separate plate a', and making the screw-holes 8 elongated, asseen in iig. 2, so that the pla-te t' and flange 6 maybe positioned so-as to cause the meeting rails of the sash to be drawn together by the lever a.

This construction facilitates the fitting of the fastening upon the sashes, and also the adjustment, in case of shrinkage.

What we claim as our invention, is-

1. The stop 2, in the recessed surface of the plate 

